My 3.5 week old is nursing non-stop. I feel like she hardly sleeps and she wants to be latched 24/7. I also have a 2 year old I need to take care of. I don't remember older DD doing this all day and night. She was colicky but BF didn't soothe her. This one is totally using me as a paci but is not so interested in using an actual paci.

Any advice? Is this a growth spurt? It's been going on for almost a week.